Q1: I don't know what did you mean by that, but it seems that you'll activate the have by default browser, and install the support apps like DirectX, C++ and Net fame and try to disable adBlocker and Windows Defender. Also reach the 300 points.
Q2: As i can see those post that said that only"wallhack" that you can used in the game, or sometimes no recoil.
Q3: Hacks is not safe, even all the hacks are the same so don't used your main account.
Q4: Try to Set in your game there's a settings that you can only choose what hack that you used.
Well since im not Prime member im not tell that i know everything, that's only my suggestions.